Converting modules from 4.7 to 5.x difficult?

I am not sure where to ask this question and since I replied on a existing topic which did not get any attention I would like to ask the question once more. I already posted here http://drupal.org/node/143570

I would like to use this module (Cpanel integration) in Drupal 5 and I am not an experienced coder but would love to learn so thats why I would like to ask some questions.

I looked at the documentation in order to understand how a 4.7 module should be ported to 5.x http://drupal.org/node/64279

It seems that, when you strictly follow the rules given in the mentioned link, everything should work out ok. Is this a correct idea?

Furthermore, I opened the Cpanel module file and search for the given strings to which you should pay attention during convertion of a module to 5.x. Although I did not search for all strings yet, it seems that most of the strings do not exist in the Cpanel module.

Considering the little information I have at the moment, it seems not such a hard and time consuming project to convert the Cpanel module to 5.x. Since this is the first time that I look more closer at modules and considering my very basic knowledge of PHP I might be completly wrong and therefore I was hoping that some of the more experienced programmers could comment on my findings and maybe could provide me with some extra tips.